A bounce-averaged Monte Carlo collision operator and ripple transport in a tokamak

descriptionPublicationkeyboard_double_arrow_right Article 01 Jun 1988 English Publisher:AIP PublishingJournal:The Physics of Fluids, volume 31, pages 1,809-1,810 (issn: 0031-9171,

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Authors: Jay M. Albert; Allen H. Boozer;

doi: 10.1063/1.866673

A bounce-averaged Monte Carlo collision operator and ripple transport in a tokamak

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Abstract

A bounce-averaged Monte Carlo pitch-angle scattering operator presented by Tolliver [Phys. Fluids 28, 1083 (1985)] is discussed and shown to follow directly from a bounce-averaged drift-kinetic equation of Connor and Cordey [Nucl. Fusion 14, 185 (1974)]. This operator is used in a discrete mapping analysis of radial transport of test particles in a slightly rippled tokamak, illustrating time step restrictions for its validity. This treatment of collisions is different than that of Yushmanov [Nucl. Fusion 23, 1599 (1983)] but gives the same results for ripple transport.

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Princeton Plasma Physics Laboratory
United States

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